JP3029965U - pillow - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention provides a pillow made of synthetic cotton, which is fully elastic and has a good shape retention property, since it has characteristics such as breathability, moisture absorption and softness. For the purpose of provision. [Structure] The upper and lower two polyester cottons 3a and 3b are heated without restraining the surroundings, and when they become soft, the core material of the urethane foam 2 is sandwiched along the peripheral edge and put into a molding die 4 to form a peripheral edge portion. Only the e is strongly pressed, and the embedding part u and the central part c are not pressurized strongly. Further, after taking out from the molding die 4, a vent hole h is provided in the central portion c to enhance the air permeability.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improved pillow.

[0002]

[Prior art]

 Traditionally, pillows that are used as part of bedding are often made of cloth bags filled with filler such as buckwheat, chaff, or fibers such as natural cotton and palm fibers. However, since fillers such as buckwheat and rice husks move in the bag, they tend to be locally crushed and easily attacked by insects, and the fibers such as natural cotton have a shape retention. There is a problem that it is not good.

Therefore, in recent years, a pillow in which a foamed material such as polyurethane, which is relatively excellent in workability, is used as a core material and the periphery thereof is wrapped with a synthetic fiber such as polyester has been used. In the manufacture of such a pillow, for example, as in Japanese Patent Publication No. 3-15884, a tubular member made of urethane foam is placed in a cloth bag and the outer side of the tubular member is covered with a natural material. Techniques for filling and molding cotton or synthetic cotton are known.

[0004]

[Problems to be solved by the device]

 However, when the bag is simply filled with urethane foam and natural cotton as in Japanese Examined Patent Publication No. 3-15884, it is necessary to have a means for preventing the displacement of the two (in the same technology, The parts are caulked with metal fittings.), And there was a problem in process control that a misalignment prevention process was required after the molding process.

In order to solve this, after wrapping the periphery of a core material such as urethane foam with synthetic cotton, this is put in a heating mold and pressed at the same time as heating, and then it is cooled and solidified to room temperature and integrally molded. However, if you wrap the urethane foam in synthetic cotton and press it at the same time with a heating mold to mold it, the melted resin in the molded part will become clogged and solidify by cooling. There was a problem that the portion in contact with the mold became like a resin film, and the fibers were often fused and bonded together, impairing the breathability, hygroscopicity, and softness, which are the original characteristics of cotton.

Therefore, while using synthetic cotton that is easy to mold and inexpensive, the original characteristics of cotton such as breathability, hygroscopicity, and softness are sufficiently exhibited, and the elasticity and shape retention are excellent. A good pillow was desired.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention has a core material made of foamed resin, which is embedded in an outer shape at a position along the outer periphery at a predetermined distance from the peripheral edge, and is integrated by sandwiching the core material vertically. A pillow is composed of a pair of upper and lower resin fiber layers whose concave center is formed at least on the upper surface, and these resin fiber layers are heated without molding and then inserted into a molding die with a core material sandwiched between them. Then, the shape was applied without applying strong pressure.

According to the second aspect, the peripheral edge portion of the resin fiber layer is strongly pressed and bonded. In the third aspect, the foam resin core material is urethane foam, and the resin fiber layer is polyester cotton. Further, in claim 4, a hole is formed in the central portion of the pillow.

[0009]

[Action]

 The core material made of foamed resin and the resin fiber layer are laminated to improve cushioning properties and prevent so-called fatigue. When shaping the resin fiber layer, it is divided into a heating step and a molding step. First, in the heating step, the periphery of the fiber resin layer is heated in a free state to soften it, and then the resin softened in the molding step. If the fibrous layer is placed in a molding die and shaped without being strongly pressed, the melted resin does not become clogged, and breathability, hygroscopicity, and softness are not impaired. By making at least the upper surface of the central portion concave, the head is supported at a constant height, and is supported in a more stable state.

At this time, if only the peripheral edge portion of the resin fiber layer is strongly pressed and bonded as in claim 2, the air permeability, hygroscopicity, softness, etc., of the central portion that receives the head are adversely affected. The whole can be integrated firmly. In addition, the pressure bonding of the peripheral edge is effective from the standpoint of maintaining uniform molding quality such as the overall shape of the pillow. When urethane foam is used as the core material and polyester cotton is used as the resin fiber layer as in claim 3, durability, cushioning properties, softness, etc. are excellent and the cost is also excellent. If a hole is formed in the central portion of the pillow as in claim 4, the internal air permeability is improved when the pillow is compressed or restored, which is effective for radiating heat from the head. That is, the head chill effect can be enhanced.

[0011]

【Example】

 Embodiments of the present invention will be described with reference to the accompanying drawings. 1 is a perspective view of the pillow of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, FIG. 3 is a sectional view taken along line BB of FIG. 1, FIG. 4 is a plan view, and FIG. 5 is a manufacturing process. It is a figure. As shown in FIGS. 1 to 4, the pillow 1 of the present invention has a rectangular outer appearance, and a urethane foam 2 embedded in an outer shape at a position along the outer periphery of which a certain size is inserted from the periphery, and It is composed of a pair of upper and lower polyester cottons 3a and 3b which are integrated by sandwiching the urethane foam 2 between the upper and lower sides.

In the urethane foam 2, for example, as shown in FIG. 4, two long side pillars 2a and 2b and two short side pillars 2c and 2d form a rectangular frame shape. The columnar bodies 2c and 2d on the short side are formed to have the same size, and the columnar bodies 2a and 2b on the long side are different in thickness from one side compared to the other side. It is formed thick. That is, the length x width of the two long side columnar bodies 2a, 2b is, for example, both 510 mm x 60 mm, and the height is 50 mm for one side columnar body 2a and the other side columnar body 2b. Is 30 mm. The two columnar bodies 2c and 2d on the short side have dimensions of length × width × height of 180 mm × 50 mm × 30 mm. Moreover, the density of the urethane foam 2 is 20 to 22 kg / m ³ .

The upper and lower polyester cottons 3a and 3b have a short side size of about 40 mm and a long side size of about 60 mm, and the thickness before molding is about 20 mm, which is uniform throughout. . The basis weight is about 500 g / m ² . When the upper and lower polyester cottons 3a and 3b are formed as the pillow 1, the upper and lower surfaces thereof are in close contact with each other at the peripheral edge portion e and the central portion c, and the central portion of the polyester cotton 3a on the upper surface side. Is made concave, and the thickness of the entire pillow 1 is set so that the central portion c which is closely adhered is thinner than the embedded portion u in which the urethane foam 2 is embedded. And, in this central portion c, there are formed holes h, ... At three locations along the longitudinal direction.

The pillow 1 is manufactured by the following manufacturing method. That is, first, the two polyester cottons 3a and 3b formed to have a constant thickness are heated by a heating means such as an oven in a free state where the surroundings are not restricted. This heating is performed to such an extent that the entire polyester cotton 3a, 3b becomes sufficiently soft, for example, at a temperature of about 200 ° C. for about 3 to 4 minutes.

When the whole becomes sufficiently soft, the polyester cottons 3a and 3b are taken out from the heating means, and as shown in FIG. 5 (A), the urethane foam 2 is sandwiched between the upper mold 4a and the upper mold 4a of the molding mold 4. It is set between the lower molds 4b, and then the push molding as shown in (B) is performed. This push-molding is performed so that the embedded portion u and the central portion c of the urethane foam 2 are applied with a light force without being strongly pressed. For example, in the embedded portion u, the sandwiched urethane foam 2 is slightly deformed vertically. It is set so that a slight repulsive force is generated. By laminating the urethane foam 2 and the polyester cottons 3a and 3b in this way, the cushioning property is improved, and so-called sagging prevention is achieved. On the other hand, the peripheral edge portion e is pressed by a relatively strong force so that the peripheral edge portions of the polyester cottons 3a, 3b are firmly joined.

The shaping by the molding die 4 is performed for about 4 minutes in the embodiment, during which the polyester cottons 3a and 3b are naturally cooled and solidified. By shaping without applying strong pressure, clogging and the like are prevented, and the softness, breathability, and hygroscopicity, which are the characteristics of cotton, are not impaired. Further, the pressing of the peripheral edge portion e may be performed with the same light force as that of the central portion c. Even in this case, the upper and lower polyester cottons 3a and 3b can be joined, but the same portion is strongly applied. By pressure bonding, the entire pillow 1 can be integrated more firmly, and the breathability, hygroscopicity, and softness of the central portion c on which the head is placed are not adversely affected.

Next, when the molded product is taken out from the molding die 4, holes h 1, ... Are formed at three locations in the central portion c. By providing the holes h, ..., Air permeability when performing a pumping action when the load is applied to or removed from the pillow 1 is improved, and it is also effective for radiating heat from the head. Further, even when a cover is put on the outer side of the pillow 1, the upper and lower covers can be stopped by using the holes h, ....

If the thick columnar body 2a of the urethane foam 2 is used on the top side of the head, the neck side is not so high and is supported, which is comfortable. Moreover, the head is supported in a stable state by the shape of the recess at the center of the top surface. Of course, it is not an essential requirement of the present invention to provide a difference in thickness between the front and rear urethane foams 2.

[0019]

[Effect of device]

 As described above, the present invention aims to improve cushioning properties and prevent so-called settling by laminating a resin foam core material and a resin fiber layer, and when shaping the resin fiber layer, first of all, do not restrain the surroundings. Since it is heated in a free state to soften it, and then put it in the mold and shape without pressing it strongly, the melted resin does not become clogged, breathability, moisture absorption, soft feeling etc. It can be a pillow that does not spoil. However, it is comfortable because the head is supported in a stable state by the concave shape in the center of the upper surface.

At this time, if only the peripheral edge portion of the resin fiber layer is strongly pressed and joined as in claim 2, the whole can be firmly integrated, and in addition, the molding quality such as the shape can be kept uniform. It is valid. When urethane foam is used as the core material and polyester cotton is used as the resin fiber layer as in claim 3, durability, cushioning properties, softness, etc. are excellent and the cost is also excellent. In addition, if a hole is formed in the central portion of the pillow as in the fourth aspect, it is possible to enhance the breathability when the pillow is loaded or unloaded, and the head-chill effect is enhanced.

[Brief description of drawings]

FIG. 1 is a perspective view of the pillow of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is a sectional view taken along line BB of FIG.

[Figure 4] Plan view of the pillow

FIG. 5 shows a manufacturing process, and (A) is an explanatory view of a state in which a core material is sandwiched between heated resin fiber layers and set in a molding die;
(B) is a mold clamping state diagram

[Explanation of symbols]

1 ... Pillow, 2 ... Urethane foam, 3a, 3b ... Polyester cotton, 4 ... Mold, c ... Central part, e ... Peripheral part, h ... Vent hole.

Claims (4)

[Scope of utility model registration request] 1. A core material made of foamed resin, which is embedded in an outer shape at a position that is inserted into a predetermined dimension from the peripheral edge along the outer periphery, and a central portion which is integrated by sandwiching the core material vertically and which is separated from the core material. It is composed of a pair of upper and lower resin fiber layers shaped concave at least on the upper surface, and this resin fiber layer is heated without molding and then molded into a molding mold with the core material sandwiched between them, and it is not strongly pressed. Pillow characterized by being shaped in. 2. The pillow according to claim 1, wherein the peripheral edge portion of the resin fiber layer is strongly pressed and joined. 3. The pillow according to claim 1, wherein the foam resin core material is urethane foam,
The pillow, wherein the resin fiber layer is polyester cotton. 4. The pillow according to any one of claims 1 to 3, wherein a hole is formed in a central portion of the pillow.